COVER INFORMATION Station: GBT_VLBA (Code Gb ) Experiment: bw070 M84 Black hole. Ly, Walker, Wrobel. Exp. Code: bw070 Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: R.C. Walker Address: NRAO, P.O. Box O Socorro, NM 87801 USA Phone: +1-505-835-7247 (w) / +1-505-835-3972 (h) EMAIL: cwalker@nrao.edu Fax: +1-505-835-7027 Phone during observation: +1-505-835-7247 (w) / +1-505-835-3972 (h) Observing mode: VLBA Notes: 1156+295 and 3C273 non-recording scans are for GB and EB pointing. 1156+295 recording scans are not for pointing. VLBA will observe other sources during GB and/or EB pointing scans. Schedule for GBT_VLBA (Code Gb ) Page 2 bw070 M84 Black hole. Ly, Walker, Wrobel. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 4 Apr 2004 Day 95 --- ---------- ======== Pointing for GBT and EB ======== ---------- Next scan frequencies: 43119.49 43119.49 43135.49 43135.49 Next BBC frequencies: 719.49 719.49 735.49 735.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 23 00 00 1156+295 06 35 01 24.1 70.9 -5.4 -58.0 0 1 1 0 Stopped 23 10 00 --- 06 45 03 26.0 72.1 -5.2 -58.7 600 S 1 0 23 10 13 1156+295 06 45 16 26.0 72.2 -5.2 -58.7 3 1 1 0 23 10 13 23 15 13 --- 06 50 17 26.9 72.8 -5.2 -59.0 300 F 1 4000 23 16 36 M84 06 51 40 13.1 83.8 -5.6 -53.0 26 1 1 4000 23 16 36 23 22 36 --- 06 57 41 14.2 84.7 -5.5 -53.1 360 F 1 8800 23 22 49 M84 06 57 54 14.3 84.8 -5.5 -53.1 3 1 1 8800 23 22 49 23 33 49 --- 07 08 55 16.4 86.4 -5.3 -53.3 660 F 1 17600 23 34 18 3C274 07 09 25 15.1 86.0 -5.4 -53.1 14 1 2 17600 23 34 18 23 36 18 --- 07 11 25 15.5 86.3 -5.3 -53.2 120 R 1 16000 23 36 50 M84 07 11 57 17.0 86.9 -5.2 -53.4 16 1 2 16000 23 36 50 23 45 50 --- 07 20 59 18.8 88.3 -5.1 -53.4 540 R 1 8800 23 46 03 M84 07 21 11 18.8 88.3 -5.1 -53.4 3 1 2 8800 23 46 03 23 48 03 --- 07 23 12 19.2 88.6 -5.0 -53.4 120 R 1 7200 ---------- ============ Pointing for GBT ========== ---------- 23 49 01 1156+295 07 24 10 33.3 77.1 -4.6 -61.0 0 1 2 7200 Stopped 23 57 01 --- 07 32 11 34.9 78.1 -4.5 -61.4 480 S 1 7200 --- Start: Sun 4 Apr 2004 Day 95 -- Stop: Mon 5 Apr 2004 Day 96 --- 23 57 57 M84 07 33 08 21.2 90.1 -4.9 -53.5 0 1 3 7200 23 57 57 00 08 57 --- 07 44 10 23.3 91.9 -4.7 -53.4 660 F 1 1600 00 09 27 3C274 07 44 39 22.0 91.5 -4.8 -53.3 14 1 3 1600 00 09 27 00 11 27 --- 07 46 40 22.4 91.8 -4.7 -53.3 120 F 1 3200 00 11 58 M84 07 47 11 23.9 92.4 -4.6 -53.4 15 1 3 3200 00 11 58 00 20 58 --- 07 56 13 25.7 93.8 -4.5 -53.3 540 F 1 10400 Schedule for GBT_VLBA (Code Gb ) Page 3 bw070 M84 Black hole. Ly, Walker, Wrobel. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 5 Apr 2004 Day 96 --- 00 21 11 M84 07 56 25 25.7 93.8 -4.5 -53.3 2 1 4 10400 00 21 11 00 32 11 --- 08 07 27 27.9 95.6 -4.3 -53.1 660 R 1 16000 ---------- ============ Pointing for GBT and EB ========== ---------- 00 33 12 3C273 08 08 28 20.5 104.4 -4.3 -49.4 26 1 4 16000 Stopped 00 42 12 --- 08 17 30 22.2 106.0 -4.2 -48.9 540 S 1 16000 00 43 24 M84 08 18 42 30.1 97.5 -4.1 -52.8 35 1 4 16000 00 43 24 00 54 24 --- 08 29 44 32.2 99.4 -3.9 -52.4 660 R 1 7200 00 54 53 3C274 08 30 13 30.9 99.0 -4.0 -52.4 14 1 4 7200 00 54 53 00 56 53 --- 08 32 13 31.3 99.3 -4.0 -52.3 120 R 1 5600 00 57 23 M84 08 32 44 32.8 100.0 -3.9 -52.3 14 1 5 5600 00 57 23 01 06 23 --- 08 41 45 34.5 101.6 -3.7 -51.9 540 F 1 1600 01 06 36 M84 08 41 57 34.6 101.6 -3.7 -51.9 2 1 5 1600 01 06 36 01 17 36 --- 08 52 59 36.7 103.7 -3.5 -51.3 660 F 1 10400 01 18 04 3C274 08 53 28 35.4 103.2 -3.6 -51.3 13 1 5 10400 01 18 04 01 20 04 --- 08 55 28 35.7 103.5 -3.6 -51.2 120 F 1 12000 ---------- ============ Pointing for GBT ========== ---------- 01 20 37 3C273 08 56 01 29.3 113.2 -3.6 -46.1 0 1 5 12000 Stopped 01 28 37 --- 09 04 02 30.7 114.8 -3.4 -45.4 480 S 1 12000 01 29 46 M84 09 05 11 39.0 106.1 -3.3 -50.5 30 1 6 12000 01 29 46 01 40 46 --- 09 16 13 41.0 108.3 -3.2 -49.7 660 R 1 14400 01 40 58 M84 09 16 25 41.1 108.3 -3.1 -49.7 2 1 6 14400 01 40 58 01 51 58 --- 09 27 27 43.1 110.7 -3.0 -48.7 660 R 1 5600 01 52 25 3C274 09 27 55 41.8 110.1 -3.1 -48.9 12 1 6 5600 01 52 25 01 54 25 --- 09 29 55 42.2 110.5 -3.0 -48.7 120 R 1 4000 01 54 54 M84 09 30 24 43.7 111.4 -2.9 -48.4 13 1 7 4000 01 54 54 02 03 54 --- 09 39 26 45.3 113.4 -2.8 -47.5 540 F 1 3200 02 04 06 M84 09 39 37 45.3 113.5 -2.8 -47.5 2 1 7 3200 02 04 06 02 15 06 --- 09 50 39 47.3 116.1 -2.6 -46.2 660 F 1 12000 Schedule for GBT_VLBA (Code Gb ) Page 4 bw070 M84 Black hole. Ly, Walker, Wrobel. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 5 Apr 2004 Day 96 --- ---------- ============ Pointing for GBT and EB ========== ---------- 02 16 02 3C273 09 51 35 38.8 125.5 -2.6 -39.7 17 1 7 12000 Stopped 02 25 02 --- 10 00 37 40.2 127.7 -2.5 -38.3 540 S 1 12000 02 26 20 M84 10 01 55 49.2 119.0 -2.4 -44.6 36 1 8 12000 02 26 20 02 37 20 --- 10 12 56 51.1 122.1 -2.2 -42.9 660 R 1 14400 02 37 46 3C274 10 13 23 49.8 121.1 -2.3 -43.4 12 1 8 14400 02 37 46 02 39 46 --- 10 15 24 50.2 121.7 -2.3 -43.0 120 R 1 12800 02 40 14 M84 10 15 51 51.6 122.9 -2.2 -42.4 12 1 8 12800 02 40 14 02 49 14 --- 10 24 53 53.0 125.6 -2.0 -40.8 540 R 1 5600 02 49 26 M84 10 25 05 53.1 125.6 -2.0 -40.8 2 1 9 5600 02 49 26 03 00 26 --- 10 36 07 54.8 129.2 -1.8 -38.5 660 F 1 3200 03 00 52 3C274 10 36 33 53.6 128.0 -1.9 -39.2 12 1 9 3200 03 00 52 03 02 52 --- 10 38 33 53.9 128.6 -1.9 -38.8 120 F 1 4800 ---------- ============ Pointing for GBT ========== ---------- 03 03 31 3C273 10 39 12 45.7 138.5 -1.8 -31.3 0 1 9 4800 Stopped 03 11 31 --- 10 47 13 46.8 141.0 -1.7 -29.5 480 S 1 4800 03 12 31 M84 10 48 14 56.6 133.3 -1.6 -35.8 17 1 9 4800 03 12 31 03 23 31 --- 10 59 16 58.1 137.5 -1.4 -32.9 660 F 1 13600 03 23 58 3C274 10 59 42 57.0 135.9 -1.5 -33.9 10 1 9 13600 03 23 58 03 25 58 --- 11 01 42 57.2 136.7 -1.5 -33.4 120 F 1 15200 03 26 25 M84 11 02 09 58.5 138.6 -1.4 -32.1 10 1 10 15200 03 26 25 03 35 25 --- 11 11 11 59.6 142.3 -1.2 -29.5 540 R 1 12800 03 35 36 M84 11 11 23 59.6 142.3 -1.2 -29.4 2 1 10 12800 03 35 36 03 46 36 --- 11 22 24 60.9 147.1 -1.0 -25.8 660 R 1 4000 ---------- ============ Pointing for GBT and EB ========== ---------- 03 47 54 1156+295 11 23 43 78.1 138.3 -0.6 -36.7 10 1 10 4000 Stopped 03 55 54 --- 11 31 44 79.1 145.7 -0.5 -30.4 480 S 1 4000 Schedule for GBT_VLBA (Code Gb ) Page 5 bw070 M84 Black hole. Ly, Walker, Wrobel. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 5 Apr 2004 Day 96 --- 03 57 33 1156+295 11 33 23 79.3 147.4 -0.4 -29.0 83 1 10 4000 03 57 33 04 00 33 --- 11 36 24 79.6 150.5 -0.4 -26.2 180 R 1 1600 04 01 53 M84 11 37 44 62.3 154.4 -0.8 -20.3 11 1 11 1600 04 01 53 04 09 53 --- 11 45 45 63.0 158.4 -0.7 -17.2 480 F 1 4800 04 10 05 M84 11 45 57 63.0 158.5 -0.7 -17.1 2 1 11 4800 04 10 05 04 21 05 --- 11 56 59 63.7 164.3 -0.5 -12.6 660 F 1 13600 04 21 30 3C274 11 57 24 62.9 161.7 -0.6 -14.6 6 1 11 13600 04 21 30 04 23 30 --- 11 59 25 63.0 162.8 -0.5 -13.7 120 F 1 15200 04 23 57 M84 11 59 51 63.8 165.8 -0.4 -11.3 6 1 12 15200 04 23 57 04 32 57 --- 12 08 53 64.2 170.8 -0.3 -7.4 540 R 1 12800 04 33 08 M84 12 09 04 64.2 170.9 -0.3 -7.3 2 1 12 12800 04 33 08 04 44 08 --- 12 20 06 64.4 177.1 -0.1 -2.4 660 R 1 4000 ---------- ============ Pointing for GBT and EB ========== ---------- 04 48 15 J1635+3808 12 24 13 41.7 69.6 -4.2 -69.0 50 1 12 4000 Stopped 04 56 15 =1633+38 12 32 14 43.2 70.4 -4.1 -69.7 480 S 1 4000 04 56 27 J1635+3808 12 32 27 43.2 70.4 -4.0 -69.7 2 1 12 4000 04 56 27 05 00 27 =1633+38 12 36 27 44.0 70.8 -4.0 -70.1 240 R 1 800 ---------- ============ Pointing for GBT ========== ---------- 05 03 54 3C273 12 39 54 53.5 184.4 0.2 3.5 0 1 12 800 Stopped 05 11 54 --- 12 47 56 53.3 187.8 0.3 6.1 480 S 1 800 05 12 40 M84 12 48 42 63.9 193.1 0.4 10.5 0 1 13 800 05 12 40 05 27 40 --- 13 03 45 63.0 201.0 0.6 16.8 900 F 1 11200 05 28 01 3C274 13 04 05 62.9 198.0 0.6 14.3 0 1 13 11200 05 28 01 05 30 01 --- 13 06 06 62.8 199.0 0.6 15.1 120 F 1 12800 05 30 22 M84 13 06 27 62.8 202.4 0.7 17.9 0 1 14 12800 05 30 22 05 45 22 --- 13 21 30 61.5 209.8 0.9 23.5 900 R 1 10400 Schedule for GBT_VLBA (Code Gb ) Page 6 bw070 M84 Black hole. Ly, Walker, Wrobel. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 5 Apr 2004 Day 96 --- ---------- ============ Pointing for GBT ========== ---------- 05 46 06 3C273 13 22 14 51.6 201.6 0.9 16.8 0 1 14 10400 Stopped 05 54 06 --- 13 30 15 51.0 204.7 1.0 19.1 480 S 1 10400 ----------- Tape Change ------------ 05 54 49 M84 13 30 58 60.6 214.1 1.1 26.8 0 2 1 10400 05 54 49 06 09 49 --- 13 46 01 58.8 220.5 1.3 31.4 900 F 1 1600 06 10 09 3C274 13 46 20 59.0 217.8 1.3 29.4 0 2 1 1600 06 10 09 06 12 09 --- 13 48 21 58.8 218.6 1.3 30.0 120 F 1 3200 06 12 29 M84 13 48 41 58.4 221.5 1.4 32.2 0 2 1 3200 06 12 29 06 27 29 --- 14 03 44 56.4 227.2 1.6 36.1 900 F 1 15200 ---------- ============ Pointing for GBT ========== ---------- 06 28 09 3C273 14 04 24 47.6 216.7 1.6 27.9 0 2 1 15200 Stopped 06 36 09 --- 14 12 25 46.6 219.3 1.7 29.7 480 S 1 15200 06 36 48 M84 14 13 04 55.0 230.4 1.8 38.2 0 2 2 15200 06 36 48 06 51 48 --- 14 28 07 52.7 235.1 2.0 41.3 900 R 1 8000 06 52 06 3C274 14 28 25 53.1 232.9 2.0 39.8 0 2 2 8000 06 52 06 06 54 06 --- 14 30 25 52.8 233.6 2.0 40.2 120 R 1 6400 06 54 25 M84 14 30 44 52.2 235.9 2.1 41.7 0 2 3 6400 06 54 25 07 09 25 --- 14 45 47 49.7 240.2 2.3 44.2 900 F 1 5600 ---------- ============ Pointing for GBT ========== ---------- 07 10 02 3C273 14 46 24 42.0 229.2 2.3 36.4 0 2 3 5600 Stopped 07 18 02 --- 14 54 25 40.8 231.3 2.4 37.7 480 S 1 5600 07 18 38 M84 14 55 01 48.1 242.6 2.5 45.5 0 2 3 5600 07 18 38 07 33 38 --- 15 10 03 45.5 246.3 2.7 47.4 900 F 1 17600 07 33 55 3C274 15 10 20 46.1 244.5 2.7 46.4 0 2 4 17600 07 33 55 07 35 55 --- 15 12 21 45.8 245.0 2.7 46.6 120 R 1 16000 07 36 12 M84 15 12 38 45.0 246.9 2.8 47.7 0 2 4 16000 07 36 12 07 51 12 --- 15 27 41 42.3 250.3 3.0 49.1 900 R 1 4000 Schedule for GBT_VLBA (Code Gb ) Page 7 bw070 M84 Black hole. Ly, Walker, Wrobel. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 5 Apr 2004 Day 96 --- ---------- ============ Pointing for GBT ========== ---------- 07 56 02 J1635+3808 15 32 31 77.7 86.6 -1.0 -83.7 0 2 4 4000 Stopped 08 04 02 =1633+38 15 40 33 79.2 87.4 -0.9 -84.1 480 S 1 4000 08 04 12 J1635+3808 15 40 43 79.3 87.4 -0.9 -84.1 0 2 4 4000 08 04 12 08 08 12 =1633+38 15 44 43 80.1 87.9 -0.8 -84.3 240 R 1 800 ---------- ============ Pointing for GBT ========== ---------- 08 12 50 3C273 15 49 22 31.7 244.1 3.3 44.8 0 2 4 800 Stopped 08 20 50 --- 15 57 23 30.3 245.8 3.5 45.6 480 S 1 800 08 21 24 M84 15 57 58 36.6 256.4 3.5 51.3 0 2 5 800 08 21 24 08 36 24 --- 16 13 00 33.7 259.2 3.8 52.1 900 F 1 11200 08 36 40 3C274 16 13 16 34.5 257.7 3.7 51.6 0 2 5 11200 08 36 40 08 38 40 --- 16 15 16 34.1 258.1 3.7 51.7 120 F 1 12800 08 38 56 M84 16 15 33 33.2 259.6 3.8 52.2 0 2 6 12800 08 38 56 08 53 56 --- 16 30 35 30.3 262.2 4.1 52.8 900 R 1 10400 ---------- ============ Pointing for GBT ========== ---------- 08 54 30 3C273 16 31 09 24.1 252.2 4.0 48.3 0 2 6 10400 Stopped 09 02 30 --- 16 39 10 22.6 253.7 4.2 48.8 480 S 1 10400 09 03 05 M84 16 39 46 28.5 263.8 4.2 53.0 1 2 7 10400 09 03 05 09 18 05 --- 16 54 48 25.6 266.3 4.5 53.3 900 F 1 1600 09 18 21 3C274 16 55 03 26.4 264.9 4.4 53.0 0 2 7 1600 09 18 21 09 20 21 --- 16 57 04 26.0 265.3 4.4 53.1 120 F 1 3200 09 20 36 M84 16 57 19 25.1 266.7 4.5 53.3 0 2 7 3200 09 20 36 09 35 36 --- 17 12 22 22.2 269.1 4.8 53.5 900 F 1 15200 ---------- ============ Pointing for GBT ========== ---------- 09 36 09 3C273 17 12 55 16.2 259.5 4.7 50.4 0 2 7 15200 Stopped 09 44 09 --- 17 20 56 14.6 260.8 4.9 50.7 480 S 1 15200 09 44 46 M84 17 21 33 20.4 270.5 4.9 53.5 3 2 8 15200 09 44 46 09 59 46 --- 17 36 35 17.4 272.8 5.2 53.4 900 R 1 8000 Schedule for GBT_VLBA (Code Gb ) Page 8 bw070 M84 Black hole. Ly, Walker, Wrobel. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 5 Apr 2004 Day 96 --- 10 00 01 3C274 17 36 50 18.2 271.5 5.1 53.3 0 2 8 8000 10 00 01 10 02 01 --- 17 38 51 17.8 271.8 5.1 53.3 120 R 1 6400 10 02 16 M84 17 39 06 16.9 273.2 5.2 53.3 0 2 9 6400 10 02 16 10 17 16 --- 17 54 09 14.0 275.5 5.5 53.1 900 F 1 5600 ---------- ============ Pointing for GBT ========== ---------- 10 20 47 J1635+3808 17 57 40 73.9 275.3 1.4 82.5 0 2 9 5600 Stopped 10 28 47 =1633+38 18 05 41 72.3 276.0 1.5 82.0 480 S 1 5600 10 30 22 J1635+3808 18 07 16 72.0 276.2 1.5 81.8 85 2 9 5600 10 30 22 10 34 22 =1633+38 18 11 17 71.2 276.6 1.6 81.6 240 F 1 8800 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bw070.set Matches group gbt7mm_c8 in /mnt/mach/mach/cwalker/code/sched/catalogs/freq.dat LO1=37.15, LO2=15.75, LO3=10.5 Setup group: 2 Station: GBT_VLBA Total bit rate: 256 Format: VLBA1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 42400.00 42400.00 42400.00 42400.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = A C A C The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 1 LO sum= 43119.49 43119.49 43135.49 43135.49 BBC fr= 719.49 719.49 735.49 735.49 Bandwd= 16.000 16.000 16.000 16.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 13510 13510 0 0 0 0 PCALFR2= 510 510 13510 13510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- bw070 M84 Black hole. Ly, Walker, Wrobel. Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Source Source position (RA/Dec) (B1950) (J2000) (Date) * M84 12 22 31.581984 * 12 25 03.743336 12 25 17.348976 13 09 48.76873 * 12 53 12.13934 12 51 44.28662 From catalog imbedded in main SCHED input file. Ly, Walker, and Wrobel AJ 2004 J0423-0120 04 20 43.539850 * 04 23 15.800727 04 23 27.237277 * 0420-014 -01 27 28.70002 *-01 20 33.06531 -01 20 01.60161 J0423-01 /mnt/mach/mach/cwalker/code/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report J1159+2914 11 56 57.786211 * 11 59 31.833912 11 59 45.855866 * 1156+295 29 31 25.73884 * 29 14 43.82694 29 13 18.94154 J1159+29 /mnt/mach/mach/cwalker/code/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report J1229+0203 12 26 33.245833 * 12 29 06.699729 12 29 20.293675 1226+023 02 19 43.30569 * 02 03 08.59819 02 01 39.99702 * 3C273 /mnt/mach/mach/cwalker/code/sched/catalogs/sources.vlba 3C273B ICRF - Ext.1 Source - 1998 IERS Annual Report J1229+02 J1230+1223 12 28 17.569280 * 12 30 49.423382 12 31 03.002679 1228+126 12 40 01.74911 * 12 23 28.04393 12 22 00.11301 * 3C274 /mnt/mach/mach/cwalker/code/sched/catalogs/sources.vlba J1230+12 ICRF - Ext.1 Source - 1998 IERS Annual Report * J1635+3808 16 33 30.625098 * 16 35 15.492973 16 35 25.018744 1633+38 38 14 10.08283 * 38 08 04.50060 38 07 13.03495 1633+382 /mnt/mach/mach/cwalker/code/sched/catalogs/sources.vlba J1635+38 ICRF - Ext.1 Source - 1998 IERS Annual Report The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) M84 159.3 0420-014 51.8 1156+295 141.9 3C273 169.1 3C274 160.2 J1635+3808 112.9 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg